Privilege escalation in Cisco Webex Meetings Client
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-0422 |
| CWE-ID | CWE-264 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cisco Webex Meetings Suite Client/Desktop applications / Other client software Cisco WebEx Meetings Server Server applications / Conferencing, Collaboration and VoIP solutions |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Privilege escalation
EUVDB-ID: #VU14676
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-0422
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists in the folder permissions due to folder permissions that grant a user the permission to read, write, and execute files in the Webex folders. A local attacker can write malicious files to the Webex client directory, affecting all other users of the targeted device and execute commands with elevated privileges.
MitigationUpdate Cisco Webex Meetings Suite to version 32.15.20 or 33.4.
Update Cisco Webex Meeting Server to version 3.0MR2.
Cisco Webex Meetings Suite: 31.20 - 31.20.2
Cisco WebEx Meetings Server: 2.8
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-webex-pe
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
